Taylor Swift's Eras Tour is on pace to become the biggest and most lucrative concert tour in history. Each night's show offers up a career-spanning three-hour epic, with a sprawling setlist that includes a nightly assortment of surprises. But what made the tour such a juggernaut this summer?Subscribe to Pop Culture Happy Hour Plus at plus.npr.org/happyhour )Learn more about sponsor message choices: podcastchoices.com/adchoices)NPR Privacy Policy)
